Method to update user sessions after update user model for CakePHP 2.x

SessionsController.php

<?php
App::uses('AppController', 'Controller');

class SessionsController extends AppController {
    var $uses = array('User');
    
    public function update($redirectTo = null) {
        $newUser = $this->User->read(null, $this->Auth->user('id'));
        $newUser = $newUser['User'];
        unset($newUser['password']);
        
        $this->Auth->login($newUser);
        
        if (empty($redirectTo)) $redirectTo = $this->referer();
        $this->redirect($redirectTo);
    }
    
    public function test(){ debug($this->Auth->user()); exit; }
}